XX - XXThe return of post punk slowness: debut of the hotly traded London quartet. The xx's sound is as minimalist as their band name. Somewhere between Mazzy Star, The Cure and My Bloody Valentine, they style a sound that is as gloomy as it is crystal clear, the likes of which have not been heard in a long time. The London based quartet around singer Romy Madley Croft and guitarist Oliver Sim loves darkness, 80s guitar riffs and American R&B. Sounds a bit